It’s no secret that birds are facing many threats in our cities, but the leading cause of death may come as a surprise. It’s not avian flu or natural predators, but instead, outdoor cats.

This video was made in partnership with Nature Canada. For almost 90 years Nature Canada has been working to help defend and restore Canada's wild bird habitats. Nature Canada's Bird Friendly City certification program has helped make dozens of Canadian communities safer for birds. To find out more visit http://birds.naturecanada.ca Warning: this video contains graphic imagery of birds being hunted by cats. Special thanks to Dr. Elizabeth Gow, @annexcatrescue and @dylandubeau for appearing in this episode. To learn more about the impact of cats on our ecosystem, take a look at this Facets article by Dr. Gow: https://www.facetsjournal.com/doi/full/10.1139/facets-2023-0033 Check out Dr. Gow's research here: https://www.elizabethgow.com/ Our sources for this episode: https://bit.ly/4bVGbms Follow Annex Cat Rescue here: https://www.instagram.com/annexcatrescue/ https://www.facebook.com/AnnexCatRescue https://www.facebook.com/AnnexCatRescue Become an Animalogic member: https://bit.ly/AnimalogicMembership Get Animalogic Merch: https://bit.ly/3SXGrXL Support Animalogic on Patreon: https://www.patreon.com/animalogic Subscribe for new episodes on Fridays http://bit.ly/SubscribeToAnimalogic ----------- SOCIAL MEDIA https://www.tiktok.com/@animalogic https://www.instagram.com/animalogicshow/ https://twitter.com/animalogicshow https://www.facebook.com/AnimalogicShow ----------- CREDITS Animalogic Created by Dylan Dubeau and Andrew Strapp Executive Producer: Dylan Dubeau Producer, Writer: Kait Howell Host: Danielle Dufault Editor: Cat Senior Researcher, Camera Operator: Andres Salazar ----------- Examining the nature of the beast.

At least 961 birds died in one night in Chicago after crashing into the windows of the McCormick Place Lakeside Center during the height of the fall migration.